US1568198A - Combination tubing spider and support - Google Patents

Description

S. P. TSCHAPPAT COMBINATION TUBING SPIDER AND SUPPORT Jan. 5 1926.

Filed May 23 1925 3 SheetsSheet glnuc-nfoz SP. TscHAPPAT,

Jan. 5 1926. 1,568,i98

. s. P. TSCHAPPAT COMBINATION TUBING SPIDER AND SUPPORT Filed May 23, 1925 s Sheets-Sheet 2 s. P. TSCHAPPAT 3 Sheets-Sheet 5 Jan. 5 1926.

COMBINATION TUBING SPIDER AND SUPPORT Filed May 23 1925 Zn/ un tes P. TSCHAPPAT,

Patented Jan. 5, 1926.

UNlTED idlhhTE SHERIDAN P. TSCHAPIPAT, F TULSA, @KLAHOMA, ASSIGNOR 0F UNE-HALF TO HAROLD CALLAHAN, 0F INDEFENDENCE, KANSAS.

COMBINATIQN TUBING SPIDER. AND SUPPORT.

a lication sue I-iey as, 1925. enial-No. 32,519.

To cZZ whom it may concern:

it known thatl, SHERIDAN P. TsoHAr- PAT, a citizen of the United States, residing at Tulsa, in the county'of Tulsa and State of Oklahoma, have invented certain new and useful Improvements in Combination Tubing Spiders and Supports, of which the following is a. specification.

My invention is a combination tubing spider and support.

The invention comprises a casing or housing, the upper portion of which is preferably rectangular in horizontal cross section, in order thattwo slips may be employed to properly engage with the tubing, either to prevent falling, or for suspending the same. Means are provided whereby the slips are carried outwardly within the housing to be spaced from the collar of the tubing, to pergas or oil through the housing, erteriorly of the tubing. The invention further seeks to provide a device of the above mentioned character, embodying two slips which may be conveniently manipulated by one operator.

in the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of a device embodying my invention, showing the same applied to the upper end ot' a casing-head, with the slips elevated,

Figure 2 is a similar view, with the slips lowered,

Figure 3 is an end elevation of the saints,

Figure .i is a plan view of the same,

Figure 5 is a vertical longitudinal section taken on line 5-5 of Figure 4, with the slips elevated,

Figure 6 is a similar view with the slips lowered,

Figure 7 is a central transverse vertical section through the device, when used as a tube suspending device, as will appear on line 77 of Figure 4:,

Figure 8 is a horizontal section taken on line 88 of Figure 7,

Figure 9 is a horizontal section taken on line 99 of Figure 5, and,

Figure 10 is a perspective view of one slip.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 10 designates a casing, housing or bowl, which may preferably be a casting. This housing embodies a lower cylindrical tubing or portion 11, carrying a downwardly flaring flange 12, having an inclined outer surface, as shown. The housing further embodies an upper portion 13, which is rectangular in horizontal section, as shown.

The flange 12 is adapted to be mounted within the recess 14; of a casinghead 15, with a packing ring 16, arranged between the parts, as shown, to afford a gas tight joint. The flange is held within the recess 14 by means of adjustable bolts 17, engaging the inclined face of the flange.

As before stated, the upper portion of the housing 10 is rectangular in horizontal cross section and this provides straight vertical side walls 18, and straight inclined end walls 19, which converge downwardly, as shown. Arranged within the upper portion of the housing 13 are two opposed slips 20, having straight vertical side walls 21, and straight inclined end walls 22, converging downwardly. These side and end walls are adapted for slidable engagement with the side and end walls 18 and 19. The slips are provided upon their inner sides with vertical semi-cylindrical faces 23, which are serrated, as shown, for engagement with the tubing to hold the same against downward movement. The slips are provided at their upper ends with loops or handles 24. pivotally connected therewith. Particular attention is called to the fact that since the device embodies only two slips that a single operator can conveniently manipulate the slips.

The slips 20 are provided upon their outer inclined faces 22 with transverse recesses 25, extending throughout the entire width thereof. These recesses embody upper and lower inclined walls 26 and 27. The inclined end faces 19 of the housing 10 are provided with horizontal transverse recesses 29, extending throughout the entire interior width thereof, and having upper and lower inclined horizontal walls 30 and 31. When the slips are raised upwardly, as more clearly shown in Figure 5, the lower end portions 32 enter the recesses 29 and the upper end portions 33 of the housing enter the recesses 25, and hence the slips are permitted to move outwardly away from the tubing 34, and its collar 35, to be spaced therefrom a considerable distance, to permit of the free lowering or raising of the tubing, but these slips are locked in the housing, and hence are retained ready to be quickly dropped, for locking engagement with the tubing in the event of an emergency, as where the tubing was about to drop or was dropping. Means are provided to positively guide the slips outwardly, as they are elevated, and such means comprises guide bolts or elements 36, passing through openings formed inthe sides of the housing 13, and projecting inwardly beyond the side walls 18. These guide elements or bolts project into guide grooves 37, formed in the straight vertical walls or faces 21 of the slips. These guide grooves embody upper inclined portions 38, parallel with the outer inclined walls 19, and lower portions 39, which are parallel with the walls 2627, or 3031. The guide bolts and grooves are so co-related with respect to the recesses 29 that when the slips are raised, they will be guided outwardly so that the co-acting portions of the slips and housing will inter-fit, permitting of the substantial spreading movement of the slips and also locking them within the upper portion of the housing.

The housing is provided at the bottom of the inclined end walls 19, and in its side walls, with grooves 40, for the reception of cushion gaskets 41, preferably made of canvas rubber belting. These gaskets rest upon and are supported by horizontal segmental shoulders 41', which occurs at the juncture of the inclined walls 18 and the cylindrical bore of the lower cylindrical tubing or portion 11. The function of these cushion gaskets 41 is to prevent the slips from falling too far, and jamming, should one slip drop first.

When the device is employed during the raising or lowering or runn 1ng of the tubing, I provide a guide ring 42, which is cylindrical, and is supported upon a shoulder 43, within the cylindrical portion 11 of the housing. This ring may be turned or adjusted within the housing. The ring has an eccentric opening 44, and hence by turning the guide ring, it may be brought into engagement with that side of the tubing, in the direction of which it tends to sag, but ali'ording ample space for the passage of the collars 35 on the tubing. The inner wall of the guide ring is preferably beveled at its top and bottom, as indicated at 45, so that there will be no tendency for the collar to lock therewith.

When the device is used to suspend the tubing, as illustrated in Figure 7, the guide ring 42 is dispensed with, and a metallic support ring 46 is mounted upon the shoulder 43 and a packing 47, formed of rubber or the like is carried by the ring 46, with a metallic compression ring 48 arranged upon the packing ring 47. This compression ring has an upper inclined face 49, to engage with a pair of compression bolts 50, engaging within screw-threaded openings 51, formed in the side walls of the housing, said bolts projecting through recesses 52. It is obvious that by manipulation of the bolts, the packing 47 may be placed under suitable compression and will afford a gas tight joint between the housing and tubing.

The spider or device may also be used for running some of the smaller sizes of casing, and I contemplate using the device for this purpose.

The operation is as follows:

'When the slips are elevated, Figure 5, the end portions 32 of the slips'enter the recesses 29 of the housing, and the end portions 33 of the housing enter the recesses 25 of the slips, whereby the outer faces 22 of the slips are disposed outwardly of the inner faces 19 of the housing, with the resultthat the slips are spaced a substantial distance from the. tubing to clear the same, and the collar or collars carried thereby. The tubing is therefore free to be raised or lowered or run, but the slips are held or retained within the housing, and may be instantly dropped. in the case of danger. When they drop, they of course wedge against the tubing, looking it against down ward movement.

In the operation of the device. in raising or pulling the tubing from the well, the slips 20 being in the lowered position, Figure 6, need not be handled. The are loose or ride around the tubing as the tubing is being raised. and as the collars come up and pass between the slips. the slips are raised and spread. and drop back. when the collar passes upwardly. into the lowered or riding position. Should anything happen, or the moment the tubing is lowered, the slips are in a position to grip the tubing at all times. The spider therefore acts as a safety device at all times, while the tubing is being pulled. In the operation of the running or lowering the tubing into the well, the .slips must be raised and held elevated by the operator. If desired, the guide bolts 36 may be removed. and the slips may be bodily removed from the housing by hand, while running or pulling tubing. This is a practice used in connection with most other types of spiders. However, I prefer that the slips be retained elevated within the housing, when the tubing is bein lowen ed or raised, as this will enable them to 'be thrown into action immediately, to gri the tubing in the event of danger. -Furt er, the slips are adapted to grip around the body of the tubing, just below the collar, when it is being screwed together, in order that both upper and lower threads will turn and be set up tight.

In view of the foregoing description it is thought that no further explanation of r the device is -necessary.

It is to be understood that the forms of my invention herewith shown and described are to be. taken as preferred examples of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of m invention or the scope of the subjoined c aims.

Ilaving thus described my invention, I

= claim 1. A device of the character described comprising, a' housing, a pair of opposed slips slidable therein, said slips and housing being provided upon their engaging faces with transverse recesses producin interfitting parts whereby the slips are a apted to move outwardly to clear the tubing and its collar or collars when elevated and to be locked within the housing in the elevated position, and elements carried by the slips to raise them.

2. In a device of the character described, a housing havin an interior inclined engaging face, sai housing being provided upon such engaging face with a recess, the bottom wall of the recess being positioned outwardly of'the 'enga ing face, and a slip operating within the a lateral projection, said projection being adapted for over-running slidable engagement with the inclined face for producing a housing having inclined interior faces pro-.

vided with recesses producing end portions,

slips slidable within the housln and having inclined exterior feces provi ed with reousing and having cesses forming end portions," the end portions of the housing being adapted to enter the recesses of the slips and the end portions of the slips to enter the recesses of the housing.

4. In a device of the character described, a housing having the upper portion of its bore rectangular in horizontal cross'section, a pair of opposed slips slidable within the housing, the engaging faces of the housing and slips having co-acting recesses so constructed and arranged that parts of the housing and slips are adapted to have overridin engagement and to interfit when the s ips are shifted upwardly to lock the slips within the housing, and positively acting guide means to shift slips outwardly as they are elevated.

5. A device of the character described, comprising a housing having an inclined wall provided with a recess spaced from its upper end, a slip having a co-acting inclined wall and provided with a recess spaced from the lower end of the sli said inclined walls being. adapted for slida le enga ement and the recesses producing interloc ing parts which are adapted to enter said recesses. v

6. A housing having an inclined wall, a slip within the housin having an inclined wall, said inclined wal s being adapted for slidable engagement, said engaging walls embodying spaced engaging elementshaving recesses between them, said engaging elements being adapted to enter said recesses.

7. In a device of the character described, a housing provided upon its inner side with spaced lateral projections constituting inc ined walls, a slip operating within the housing and having spaced lateral projections constituting inclined walls, the projections of the housing and slip being adapted for over riding slidable en a ement, and oneprojection of the housinglieing adapted to enter the recess between the projections of the slip and one projection of the slip being adapted to enter the recess between the projections of the housing.

8. In a device of the character described, a housing havinginner inclined walls provided with recesses spaced-from the upper end thereof forming end projections, SllPS operating within the housing and having outer inclined walls provided with recesses spaced from the lower ends thereof producing lower projections, the inclined walls of the hous- .ing and slips being adapted to have over riding slidable engagement and the projections of the housing being adapted to enter the recesses of the slips and the'projections of the slips being adapted to enter the recesses of the housing, and means to positively guide the slips when moved upwardly and to shiftthem laterally so that the projections enter said recesses.

9. A device of the character described,

% Lemme comprising a housing having inclined wells slips being provided with grooves having which are provided with recesses spaced portions extending longitudinally of the 10 from the upper ends thereof, said recesses slips and transverse singularly arranged porforming inwardl projecting parts, slips options, and pins carried by the housing and 5 erating within t e housing and having inprojecting into said grooves.

clined wells provided with recesses spaced In testimony whereof I aifik my signature.

from the lower ends thereof, said recesses forming outwardly projecting parts, said SHERIDAN P. TSCHAPPAT.

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